440421253355 has 16 divisors (see below), whose sum is σ = 557161611264. Its totient is φ = 333716579040.

The previous prime is 440421253309. The next prime is 440421253399. The reversal of 440421253355 is 553352124044.

It is not a de Polignac number, because 440421253355 - 2⁸ = 440421253099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30220667 + ... + 30235236.

It is an arithmetic number, because the mean of its divisors is an integer number (34822600704).

Almost surely, 2^440421253355 is an apocalyptic number.

440421253355 is a deficient number, since it is larger than the sum of its proper divisors (116740357909).

440421253355 is a wasteful number, since it uses less digits than its factorization.

440421253355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60455986.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 440421253355 its reverse (553352124044), we get a palindrome (993773377399).

The spelling of 440421253355 in words is "four hundred forty billion, four hundred twenty-one million, two hundred fifty-three thousand, three hundred fifty-five".